Summary: I really like this unit and for the price I paid on Ebay it was a terrific buy. Unit has xm and sirrius abilities. Down side is having to still buy the antenna for it. So it is ready just not a cheap option. The HDMI ports are a real plus and having three of them is great. Also there are way more rca plug ins for accessories then you will need. Sound is very crisp and clean and great if the subwoofer is a powered unit.